3-Ethynyl-2-methylbenzo[b]thiophene CAS 1300021-13-9

Description

Compared with other compounds in its class, the molecular weight of 172.25 g/mol gives 3-Ethynyl-2-methylbenzo[b]thiophene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-Ethynyl-2-methylbenzo[b]thiophene (CAS 1300021-13-9) is a high-purity analytical reference standard with the molecular formula C11H8S and a molecular weight of 172.25 g/mol.

Structurally, 3-Ethynyl-2-methylbenzo[b]thiophene (C11H8S) contains sulfur-containing functionality, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 172.25 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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